Retirement benefits Social Security retirement benefits are for workers 62 and older who have earned at least 40 credits. The size of your benefit checks depends on your average indexed monthly earnings (AIME) over your 35 highest-earning years, and the age at which you begin benefits. You must wait until your full retirement age (FRA) to claim your standard benefit based on your AIME. Your FRA is 66 if you were born between 1943 and 1954, then it rises by two months every year thereafter until it reaches 67 for those born in 1960 or later. Be Aware Claiming benefits before your full retirement age (FRA) reduces your checks.